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-rw-r--r--src/common/compat.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/common/compat.c b/src/common/compat.c
index 4cb346dfa5..831813c1cc 100644
--- a/src/common/compat.c
+++ b/src/common/compat.c
@@ -1392,6 +1392,24 @@ tor_getsockname,(tor_socket_t sock, struct sockaddr *address,
return getsockname(sock, address, address_len);
}
+/**
+ * Find the local address associated with the socket <b>sock</b>, and
+ * place it in *<b>addr_out</b>. Return 0 on success, -1 on failure.
+ *
+ * (As tor_getsockname, but instead places the result in a tor_addr_t.) */
+int
+tor_addr_from_getsockname(tor_addr_t *addr_out, tor_socket_t sock)
+{
+ struct sockaddr_storage ss;
+ socklen_t ss_len = sizeof(ss);
+ memset(&ss, 0, sizeof(ss));
+
+ if (tor_getsockname(sock, (struct sockaddr *) &ss, &ss_len) < 0)
+ return -1;
+
+ return tor_addr_from_sockaddr(addr_out, (struct sockaddr *)&ss, NULL);
+}
+
/** Turn <b>socket</b> into a nonblocking socket. Return 0 on success, -1
* on failure.
*/